diffrence with 2 and 4ohm DVC subs

chevyshortbed88
chevyshortbed88 Posts: 12
edited October 2005 in Car Subwoofer Talk
What exactly is the difference between a 2ohm and 4ohm DVC sub? Also, can you wire a 2ohm DVC sub for a 4ohm load?
When in dout gas it
Post edited by chevyshortbed88 on
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  • neomagus00
    neomagus00 Posts: 3,899
    edited October 2005
    the difference exists to provide wiring options - a 2 ohm DVC sub has 2 2-ohm coils whilst a 4-ohm DVC sub has (surprise!) 2 4-ohm coils... so, yes, you can wire a 2 ohm DVC sub for 4 ohms by running amp+ to coil1+, from coil1- to coil2+, and from coil2- to amp-... and doubt has a 'b'...
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  • LethalLee
    LethalLee Posts: 27
    edited October 2005
    2 ohms geared towards max spl
    4 ohms has lil better sq
    8 ohms better/best sq(home theatre)
    thats why they make 3 ohm sql speakers
    im not sure if the change in sq is from the speaker or from more stress on the amp, most likely the amp.
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  • Meeks32
    Meeks32 Posts: 330
    edited October 2005
    So I guess polks high-end LSI line is for SPL purpose only & RTI & Monitor lines excell in sq then. :rolleyes: Im sure its all geared on getting the most wattage out of the amps, a car stereo amp pushing 2000 watts into 8ohms would be huge im sure.
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  • MacLeod
    MacLeod Posts: 14,358
    edited October 2005
    LethalLee wrote:
    2 ohms geared towards max spl
    4 ohms has lil better sq
    8 ohms better/best sq(home theatre)
    thats why they make 3 ohm sql speakers
    im not sure if the change in sq is from the speaker or from more stress on the amp, most likely the amp.


    The impedance has zero affect on sound quality.

    The only thing you could point to as hurting sound quality is that the lower the impedance placed on the amp the higher the distortion but unless youre running a 4 ohm amp at 1 ohm, its still going to be below an audible level.

    Ohms are resistance. When you plug in juice to an amp it starts making power and how much depends on how much resistance is pushing back. 4 ohms is pretty standard. It gives enough resistance to restrict the amp enough to keep the it running cool and making power it can do all day long. Now if you reduce the resistance to 1 ohm there isnt much to hold back the amps power and it will make much more. Most amps are not built strong enough to handle the amount of power they will release with only 1 ohm resistance which is why they fry if ran at the wrong impedance.
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